1. knifelike

1. An acute observer of politics and politicians; incisive comments; icy knifelike reasoning; as sharp and incisive as the stroke of a fang; penetrating insight; frequent penetrative observations.
    对政治和政治家的敏锐观察者；尖锐的评论；冷静敏锐的推理；象犬牙的撞击一样锋利和尖锐；明察秋毫的观察；频繁敏锐的观察。

2. Fish''.''''with knifelike spines at the tail.
    鱼''。''''，鱼尾部有如刀一样的刺颜色鲜明的热带海鱼。

3. Then there suddenly leaped to her mind the closed door of Melanie''s bedroom and a knifelike pain went through her, a pain as fierce as though Ashley had been her own husband and had been unfaithful to her.
    接着她才猛地想起媚兰将要闭门坐月子的情景来，顿觉浑身一阵刀割般的痛楚，仿佛艾希礼是她自己的丈夫而做了对不起她的事似的。

4. knifelike的解释

4. Large carnivorous bipedal dinosaur having enormous teeth with knifelike serrations; may have been a scavenger rather than an active predator; Upper Cretaceous; North America.
    大型食肉两足恐龙，巨大的牙齿上有刀一样的锯齿；可能算是食腐动物更胜于一个主动的食肉动物；上白垩纪；北美洲。

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5. Knifelike entry.
    如利刃般切入。

6. knifelike的解释

6. Beyond four knifelike walls a new life for him waited vaguely.
    在四座刀一般壁垒那边，一种新生活模模糊糊地在等候着他。

7. Brightly colored coral-reef fish with knifelike spines at the tail.
    颜色鲜明的热带珊瑚礁鱼，鱼尾部有如刀一样的刺颜色鲜明的热带海鱼。